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The Effect of Circumstellar Material on the Light Curves of Eclipsing Binary Systems

Published online by Cambridge University Press:  02 January 2013

S. M. R. Ghoreyshi ,
J. Ghanbari  and
F. Salehi
S. M. R. Ghoreyshi*
Affiliation:
Department of Physics, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran Centro de Radioastronomia y Astrofisica, Universidad Nacional Autonoma de Mexico, Apdo. Postal 72-3 (Xangari), Morelia, Michoacan 58089, Mexico
J. Ghanbari
Affiliation:
Department of Physics, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran Department of Physics, KhayyamInstitute of Higher Education, Mashhad, Iran
F. Salehi
Affiliation:
Department of Physics, KhayyamInstitute of Higher Education, Mashhad, Iran
*
DCorresponding author. Email: [email protected]
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Abstract

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This study inspects the influence of various effects and free parameters of the accretion disc and circumstellar material on the emerging light curve of eclipsing binary systems that have a circumstellar disc, by using the SHELLSPEC code. The results indicate that some of the parameters, namely the temperature and inclination of the disc, spot, jet, stream and shell, significantly affect on the emerging light curve, while some other parameters, namely the exponent of the power-law behavior of the density of the disc, microturbulence, inner and outer radius of the disc, do not noticeably affect on the emerging light curve. An application to the Algol-type eclipsing binary system AV Del and an accretion disc model for the system using the SHELLSPEC code is included.

Keywords

variable starsbinarieseclipsing binaryaccretion discstars: individual (AV Del)
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 28 , Issue 4 , 2011 , pp. 290 - 298
Copyright
Copyright © Astronomical Society of Australia 2011

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